Question

Factorise 12x+y^2-z^2-6xy+20yz-6zx​

Answer 1

$\tt =12x+y²-z²-6xy+20yz-6zx$

$\tt =x=\sqrt{x} \: factorise−12x+y²−z²$

$\tt =−6xy+20yz−6xy \: formula \: −x^{3}$

$\tt =−y^{3} −z ^{3}−3xyz=(x+y+z)(x^{2})$

$\tt =+y ^{2}+z^{2}−xy−yz−xz)x=x$

Answer 2

$\rm=12x+y²-z²-6xy+20yz-6zx=12x+y²−z²−6xy+20yz−6zx$

$\rm=x=\sqrt{x} \: Factorise−12x+y²−z²=x= 3$

$\rm =−6xy+20yz−6xy \: Formula \: −x^{3}$

$\rm =−y^{3} −z ^{3}−3xyz=(x+y+z)(x^{2})=−y^3 −z^ 3 −3xyz=(x+y+z)(x^ 2 )$

$\rm =+y ^{2}+z^{2}−xy−yz−xz)x=x=+y^2 +z^2 −xy−yz−xz)x=x$

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The polynomial cannot be factored using the grouping method. Try a different method, or if you aren't sure, choose Factor.The polynomial cannot be factored using the grouping method.